Gas-engine and ignitor therefor



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G. J. WEBER. GAS ENGINE AND IGNITEN THBNNFON.

No. 444,031. Patented Jan. 6, 1891.

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GAS ENGINE AND IGNITBR TNERBPOR. 110.444,031. Patented Jan. 6, 1891.

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UNITED STATES PATENT Erice.

GEORGE J. IVEBER, OF KANSAS CITY, MISSOURI.

GAS-ENGINE AND IGNITOR THEREFOR.

SPECIFICATION forming part of Letters Patent No. 444,031, dated January6, 1891.

Application filed July 24, 1889. Serial No. 318,596. (No model.)

T all whom it may concern.-

Be it known that 1, GEORGE J. WEBER, of Kansas Oity, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in Gas-Engines and Ignitors therefor, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming part of this specification, inwhich- Figure I is a front elevation of my improved device. Fig. II is avertical section taken on line II II, Fig. I. Fig. III is an enlargeddetail view showing parts in section. Fig. IV is an enlarged sectionalview showing the ignitor. Fig. V is an enlarged detail perspective viewof the valve-rods and wipers. Fig. VI is an enlarged front view of theignition device. Fig. VII is a side viewv of the same.

My invention relates to an improvement in gasengines and ignitorstherefor; and it consists in features of novelty hereinafter fullydescribed, and pointed out in the claims.

Referring to the drawings, 1 represents the power-cylinder, in which thepiston 2 works.

3 represents the piston-rod, which is journaled at its outer end to acrank l1 on the drive-shaft 5. The drive-shaft is supported by a frame6, which is integral with the cylinder Yshell or frame.

7 represents a ily-wheel on the drive-shaft, and 8 the belt-pulley.

9 represents a double screw-that is, arightand-left screw-situated onthe drive-shaft 5. This double screw is formed by two grooves 9, whichconverge at the point and from which point in both directions theycontinually diverge one-half the way around.

10 represents a rocking lever pivoted to a bracket 11, the bracket beingsupported by the frame 6.

12 represents a swivel secured to the upper. end of the rocking lever10, the swivel working in the double screw 9 on the drive-shaft, wherebythe lever will move continuously in one direction or the other duringthe rotation of the shaft.

13 14 represent two pawls secured to the opposite sides of the lower endof the rocking lever, one of the pawls extending in an upwarddirectionand the other extending in a downward direction.

To the pawl 14 I attach a spring 15, which limits the downward movementof the pawl, or, in other words, prevents it from passing out of contactwith the valve-rod until it is forced out by the wiper.

16 represents a valve by which gas is admitted, and 17 a valve by whichair is admitted, to a mixing-chamber 18.

19 represents a slide-valve located in a chamber 20. This valve isprovided with an opening 21 and has its rear face formed angling. Whenthe valve is closed, the rear will come in contact with an angling lug22, and the valve will be forced tight against its seat, thus shuttingoff the supply of gas. When the valve is raised, as shown in Fig. III,the gas and air will pass from the mixing-chamber 18 through openings 2324E into the chamber 20. The gas passes from the chamber into a chamber25 and from thence through a gravity-valve 26 into a chamber 27 and thenthrough an opening 28 into the cylinder, where it is fired at the propertime. The valve 26 is provided with guides 29 and 29%, which guide thevalve back to its proper position after the charge of gas has passedthrough. To aid the valve in closing, I provide spring 30, 'fo which Iattach the valve by means of a suitable link 31. After the gas has beenfired the products of combustion or exhaust pass out through agravity-valve 32 into a chamber 33 and then through the exhaust-valve 34into a chamber 35, from whence it is discharged through the exhaustpipe36. The valve 32 is provided with guides 37 38, which prevent too greata latitude.

I will now describe vmy means of ignit-ing the gas.

39 represents a circular valve located in the chamber 27, the valvebeing ground so as to have a perfectly tight seat against the outerplate 40 of the chamber. The valve is provided with a stem 4.1, whichpasses through the plate, and is provided at its outer end with a lever4t2.

43 represents a coil-spring on the stem 41, one end of the springpressing against the plate l0 and the other end pressing against thelever 42 on the end of the stem. By this means the valve 39 is held rmlyagainst its seat.

44 represents an opening in the plate 10,

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which corresponds with an opening l5 in the valve 89.

4G represents a pipe or tube, which is connected at its upper end withthe opening fit-l. This tube extends out from the wall in a horizontaldirection, where it passes into a flue i7, then passes down to the lowerend of the flue in a vertical direction, and then extends at rightangles with the iiuc for a short distance, whence it terminates in aclosed end. The lower end of the tube @i6 is provided with a sectionscrewed to the body of the tube, which may be removed when desired inorder to clean the tube.

48 represents a section of gas'pipe, which enters through a hood 49 intothe iiue 47. The ilue 47 may be lined with asbestus or other suitablematerial.

50 represents a spring, the upper end of which is secured to the outerend of the lever -12 and having its lower end secured to any suitablestationary object-such as the floor, for instance.

5l represents an irregularbar or rod, which is pivoted at its lower endto the lever 12. rlhe bar extends upward and works in openings 52 53 inbrackets 5i 55. The bar is provided on its outer face with abeveledshaped projection 5G, and has its inner face formed with a hook5S which forms a trigger and serves to hold the ignition-valve open. Thehook hooks onto the upper side of the bracket 55 when the bar has beenraised to a sufficient height.

5i) represents a link or trip provided at its inner end with an opening60, through which the upper end of the bar 5l extends, this end of thelink being supported by the bracket 55. The outer end of the link ortrip 5f) is pivoted to an eccentric 6l, the eccentric being' secured tothe rocking lever l0 by a bolt G2. The eccentric is provided with a.springarm G3.

(il representsa handle secured to the outer side of the free end of thearm G23, the inner side being provided with apointed projection U5,which engages in holes GG in the rocking lever.

(i7 represents a rod extending from the' bracket 55 down to the valve l)and is secured at its lower end to the valve. The rod passes through aplug GS, which is screwed into the frame G0, which surrounds the valve.

represents a housing screwed fast to the plug GS, and in which islocated a coil-spring 7l, which surrounds thcrod 67, the upperend of thespring bearing against the top of the housing and the lower end restingon a pin 72, which passes through the rod` The rod U7 is provided nearits upper end with a shoulder 73.

7l represents a bar or wiper situated at one side of the rod G7. (SeeFig. This wiper is formed with a reduced beveled portion ou its face.

76 represents a pin secured to the rear of the wiper Ti, and to this pinis suitably sccured a rod 77, which extends upward and is connected to agovernor 78.

79 represents a rod, which is secured at its lower end to theexhaust-valve 3l. This rod passes through a plug 80, secured in theframe Gf), and through a housing 8l, secured to the plug.

82 represents a coil-spring surrounding the rod 79, said spring havingthe upper end of the plug 8O for its lower bearing and a pin S3 in therod 70 for its upper bearing.

Si represents a dash-pot having suitable connection with the rod 79,which relieves the force of its upward stroke.

85 represents a shoulder on the rod 79.

SG represents a wipersecured to the bracket 5i and is situated alongsideof the rod 79.

87 represents the usual water-chambers surrounding the cylinder, and 8S89 the water supply and discharge pipes.

The operation is as follows: At the beginning of the upstroke of pistonthcmain shaft and double screw are made to rotate, imparting an outwardmotion to the upper end of the rocking lever, and consequently7 aninward motion of its lower end, causing the pawl to engage the shoulder73 of the rod G7, which operates the gas-supply valve 19, causing anupward movement of the rod and a consequent lifting of the gas-valve,admitting gas and air in proper proportions to the cylinder. Thegas-valve continues to open until the pointof cut-off (indicated bythegovernor) is reached, when the wiper 7l, attached to the governor,forces the pawl out of engagement with the shoulder 73. At this pointgravity and the spring 7l will cause the gas-valve 19 to close, thusshutting off the supply of At the same time the pawl 13 is raising thegas-valve and admitting a charge of gas by its contact with the beveledportion 5G on the rod 5l it raises the rod 5l until the hook 5S comes online with the top of the bracket 55, when the rod is forced over eitherby the action of the pawl or by its beveled face coming in contact withthe bracket. lVhen the bar 5l is in its raised position, the valve 39 isin the position shown in Figs. VI and VII, in which position the openingt5 in the valve is out of line with the opening i in the plate 40.lVhile the valve is in this position the gas is admitted to thecylinder, as before described. After the double screw has forced thelower end of the rocking lever inward to its farthest extent it will byits construction begin to force the lever in the opposite direction. Asthe lower end of the lever is forced outward it will be seen that thelink 50 will be drawn outward, and as this link is in engagement withthe bar 5l it will draw the bar backward until the hook is out ofengagement'. with the bracket 55. At this point the bar 5l will drop bythe action of gravity, being assisted by the spring 50. By means of thepoint G5 and the holes G6 the eccentric Gl may be set so that the linkor trip 59 will throw the hook or trigger 58 off IOO IIO

of its bearing at a sooner or later period, as may be desired, thusregulating the time of firing the charge of gas. Vhen the rod 5l passesdownward, (see dotted lines, Fig. VL) the valve 39 will be forced aroundby the lever 42 until the opening 45 in the valve comes on line with theopening 44 in the plate. At this point a portion of the compressed gasin the cylinder will shoot into the tube 46, and as this tube is heatedby the flame which comes from the gas-pipe 4S the gas in the tube 46will become ignited, and the flame shooting into the main cylinder willfire the charge of gas, forcing the piston upward, thus turning thedrive-shaft. At every other revolution of the drive-shaft the doublescrew will cause the inward movement of the upper end of the rockinglever and a consequent outward movement of the lower end of the same,causing the pawl 14 to force the rod 79 downward, which causes theexhaust-valve 34 to open and permit the products of combustion to passout. Vhen the rod 79 has been depressed to a certain extent, the pawl 14will come in contact with the wiper 86, which throws itl out ofengagement with the rod, and the valve will be closed by means of thespring 82. By means of the dash-pot 84 the closing of the exhaust-valveis cushioned.

I claim as my inventionl. In a gas-engine, the combination of thepower-cylinder,piston,piston-rod,drive-shaft, a stationary double screwlocated on said drive-shaft, and means in connection therewith foroperating the supply and exhaust valves, substantially as and for thepurpose set forth.

2. In a gas-engine, the combination of a power-cylinde r, piston,piston-rod, drive-shaft, and stationary double screw located on saiddrive-shaft for obtaining motions parallel with the drive-shaft for thepurpose of operating valve-gear, substantially as described, and for thepurpose set forth.

3. In a gas-engine, the combination of a drive-shaft, stationary doublescrew located on the drive-shaft,a rocking lever in engagement with thedouble screw, and means in connection therewith for operating thesupply, ignition, and exhaust valves, substantially as described, andfor the purpose set forth.

4. In a gas-engine, the combination of a drive shaft, double screwlocated on said shaft, a rocking lever in engagement with said doublescrew, and pawls secured to the rocking lever, whereby the supply,ignition, and exhaust valves are operated, substantially as described,and for the purpose set forth.

5. In a gas-engine, the combination of a drive shaft, double screwlocated on said shaft, a rocking lever having one of its ends vinengagement with the double screw and the other end provided with pawlswhich engage with the valve-operating rods, and wipers for disengagingsaid pawls from said rods, substantially as and for the purpose setforth.

6. In a gas-engine, the combination of a drive-shaft, double screw onsaid shaft, rocking lever in engagement with the screw, pawls on therocking-lever, rod 67, for'operating the gas-supply valve, rod 5l, foroperating the ignition-valve, wiper situated near the rods, a governorsuitably located, and means for connecting the governor with the wiper,so that the wiper may be raised or lowered according to the speed of thegovernor, substantially as described, and for the purpose set forth.

7. In a gas-engine, the combination of the power-cylinder, piston,pistoni-rod, drive-shaft, a stationary double screw on said drive-shaft,a lever engaged by said screw and fulcrumed to be oscillated in a planeparallel with the shaft, and means in connection with said lever foroperating the supply and exhaust valves, substantially as set forth.

8. In a gas-engine, the combination of the valve 39, having an opening45, a stem 4l, lever 42, the rocking lever having a pawl, a barconnected with lever 42 and adapted to be elevated by said pawl, andmeans for automatically oscillating said rocking lever, substantially asdescribed, and for the purpose set forth.

9. In a gas-engine, the combination of the valve 39, stem4l, lever 42,and a spring 50, for imparting a circular motion to said valve,substantially as described, and for the purpose set forth.

l0. In a gas-engine, the combination of a suitable ignition-valve, atrigger for holding the valve closed, and an adjustable trip forreleasing said trigger connected to a moving part of the engine,substantially as set forth.

ll. In a gas-engine, the combination of the valve 39, rod 5l, means forconnectingthe rod with the valve, said rod being provided with a beveledportion 56 and a hook 58, and means in contact with said beveledportion, whereby the hook may be forced into engagement with a fixedpoint, substantially as described, and for the purpose set forth.

l2. In a gas-engine, the combination of the ignition-Valve 39, rod 5l,having a hook 5S, and a link 59, for the purpose of disengaging the hookfrom a fixed bearing, substantially as described, and for the purposeset forth. y

13. In a gas-engine, the combination of the ignition-valve 39, valve-rod5l, link 59, rocking lever l0, and an eccentric on the rocking lever towhich one end of the link is secured, substantially as described, andfor the purpose set forth.

14. In a gas-engine, the combination of the ignition-valve 39, valve-rod5l, link 59, rocking lever l0, eccentric 6l, and means for rotating theeccentric and lixing it at any desired point, substantially asdescribed, and for the purpose set forth.

l5. In a gas-engine, the combination of the IOO IIO

ignition-Valve, valve-rod 51, link 59, rocking lever 10, having holes66, eccentric G1, and spring-arm secured to the eccentric, said armcarrying a point G5, which engages in the openings 66, substantially asdescribed, and for the purpose set forth.

1G. In a gas-engine, the combination of the ignition-Valve and anadjustable trip adapted to permit said valve to open sooner or laterWhile the engine is in motion, substantially as set forth.

17. In a gas-engine, the combination of the valve 39, having an opening`Li5,plate 40, having an opening 44, and a tube 16, secured in theopening, said tube being formed With two horizontal portions and oneVertical portion, the lower portion being detachable in order that thetube may be cleaned out when desired, substantially as described, andfor the purpose set forth.

18. In a gas-engine, the combination of the valve 39, tube 4G,connecting with the Valve and having a Vertical portion, a flue 47,surrounding said portion of the tube, and a gaspipe projecting into saidflue adjacent to said vertical portion, substantially as described, andfor the purpose set forth.

19. In a gas-engine, the combination of the valve 39, tube4:6,havingavcrtical portion,and flue 47, surrounding said Verticalportion, said {iue having ahood 49, in which is located a gaspipe 48,adjacent to said Vertical portion, substantially as described, and forthe purpose set forth.

GEORGE J. VEBER.

In presence of JAS. E. KNIGHT, L. P. ROGERS.

